Forests in Landscapes Ecosystem Approaches to Sustainability Sayer Jeffrey Innbundet / 2005 / Engelsk
Rain Forest Buffer Zones Guidelines for Protected Area Management Sayer Jeffrey Heftet / 1991 / Engelsk
Integrated Natural Resource Management Linking Productivity, the Environment and Development Campbell Bruce Heftet / 2003 / Engelsk
Science of Sustainable Development Local Livelihoods and the Global Environment Sayer Jeffrey Innbundet / 2003 / Engelsk
Gestion DES Regions Forestieres Tropicales Humides Directives Ecologiques Poore Duncan Heftet / 1993 / Fransk
Science of Sustainable Development Local Livelihoods and the Global Environment Sayer Jeffrey Heftet / 2003 / Engelsk
